20. Have the above sentences been finished?

21. Is English taught here?

22. Will she be invited to your wedding party? 

23. Has the work been finished by Tom?

24. Were some exercises given by the teacher?

25. Has the window of the laboratory been changed?

26. Is a poem going to be written? 

27. Are big cakes being made for the party?

28. Are tje inquires aboit the thief being made by the police? 

29. Must the test be finished before ten?

30. Will the children be brought jom by the buses?

31. Has your homework been finished? 

32. Why wasn't he helped?

33. How many games have been played?

34. Where was English spoken?

35. Who was kept in the kitchen?

36. How can this safe be opened?

37. What books are being read this year?

38. How was the lost man found?